VOA慢速英语:Helen Keller, 1880-1968: Out of a World of Darkness and Silence, She Brought Hope to Million

词汇讲解：

1. sign n. 手势, 姿势, 信号
例句：I saw him making signs at us.
我看见他向我们做着手势。

2. explode vi. 激增, 迅速扩大
例句：The population was still exploding.
人口仍在迅猛增长。

3. scream v. 发出尖叫声
例句：She screamed that there was a snake under the bed.
她大声喊叫床下有蛇。

4. obey v. 服从; 听从
例句：All I had to do now was to obey him in silence.
这时, 我要做的只是默默地服从他。

5. spoon n. 匙, 调羹
例句：The spoon slipped out of his hand.
汤匙从他的手中滑落。

6. punish vt. 罚, 处罚, 惩罚
例句：The parents punished their disobedient child.
父母惩罚了他们不听话的孩子。

7. sew v. 缝
例句：My mother sewed a new cotton-padded jacket for me.
妈妈给我缝制一件新棉袄。

8. pump v. 用抽水机汲水; 给…打气
例句：It is autumn and they are pumping water out of the swimming pool.
入秋了, 他们正在抽游泳池的水。

9. awaken v. 唤起;激起
例句：His suspicions were awakened.
他起了疑心。

10. rescue vt. 营救, 救援; 使免遭损失
例句：They rescued the child.
他们救出了那个小孩。